Serves as a base class for the other shadow classes.

Type Parameters

Hierarchy (view full)

Constructors

Properties

autoUpdate: boolean

Enables automatic updates of the light's shadow. If you do not require dynamic lighting / shadows, you may set this to false.

Default Value

true

bias: number

Shadow map bias, how much to add or subtract from the normalized depth when deciding whether a surface is in shadow.

Remark

The Very tiny adjustments here (in the order of 0.0001) may help reduce artifacts in shadows.

Remarks

Expects a Float

Default Value

0

blurSamples: number

The amount of samples to use when blurring a VSM shadow map.

Remarks

Expects a Integer

Default Value

8

camera: TCamera

The light's view of the world.

Remark

This is used to generate a depth map of the scene; objects behind other objects from the light's perspective will be in shadow.

The depth map generated using the internal camera; a location beyond a pixel's depth is in shadow. Computed internally during rendering.

Default Value

null
mapPass: null | WebGLRenderTarget<Texture>

The distribution map generated using the internal camera; an occlusion is calculated based on the distribution of depths. Computed internally during rendering.

Default Value

null
mapSize: Vector2

A Vector2 defining the width and height of the shadow map.

Remarks

Higher values give better quality shadows at the cost of computation time.

Default Value

new THREE.Vector2(512, 512)

matrix: Matrix4

Model to shadow camera space, to compute location and depth in shadow map. Stored in a Matrix4.

Remarks

This is computed internally during rendering.

Default Value

new THREE.Matrix4()
needsUpdate: boolean

When set to true, shadow maps will be updated in the next render call. If you have set autoUpdate to false, you will need to set this property to true and then make a render call to update the light's shadow.

Default Value

false

normalBias: number

Defines how much the position used to query the shadow map is offset along the object normal.

Remark

The Increasing this value can be used to reduce shadow acne especially in large scenes where light shines onto geometry at a shallow angle.

Remark

The cost is that shadows may appear distorted.

Remarks

Expects a Float

Default Value

0

radius: number

Setting this to values greater than 1 will blur the edges of the shadow.toi

Remark

High values will cause unwanted banding effects in the shadows - a greater mapSize will allow for a higher value to be used here before these effects become visible. @remark If {@link THREE.WebGLRenderer.shadowMap.type | WebGLRenderer.shadowMap.type is set to PCFSoftShadowMap, radius has no effect and it is recommended to increase softness by decreasing mapSize instead.

Remark

Note that this has no effect if the WebGLRenderer.shadowMap.type is set to BasicShadowMap.

Remarks

Expects a Float

Default Value

1

Methods

  • Creates a new LightShadow with the same properties as this one.

    Parameters

    • Optional recursive: boolean

    Returns this

  • Copies value of all the properties from the {@link LightShadow | source} to this Light.

    Parameters

    Returns this

  • Frees the GPU-related resources allocated by this instance

    Returns void

    Remarks

    Call this method whenever this instance is no longer used in your app.

  • Used internally by the renderer to extend the shadow map to contain all viewports

    Returns Vector2

  • Gets the shadow cameras frustum

    Returns Frustum

    Remarks

    Used internally by the renderer to cull objects.

  • Parameters

    • viewportIndex: number

    Returns Vector4

  • Used internally by the renderer to get the number of viewports that need to be rendered for this shadow.

    Returns number

  • Serialize this LightShadow.

    Returns {}

    • Update the matrices for the camera and shadow, used internally by the renderer.

      Parameters

      Returns void